Space-block for armature-cores.



No. 662,0"). Patented Nov.'20, I900.

E. W. MIX 8. E. F. G. H. FAURE.

SPACE BLOCK FOR ARMATURE CURES.

(Application filed Oct. 11, 1899.,

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PATENT EDGAR MIX AND ELIE F. G. H. FAUR 1, OF PARIS, FRANCE, ASSIGNORS TO THE GENERAL ELECTRIC COMPANY, OF NEW YORK.

SPACE-BLOCK FOR ARMATURE CORES.

SPECIFKGATION forming part of Letters Patent No. 662,010, dated. November 20, 1900.

Application filed October 11, 1899. serial No. 733,253. (No model.)

To all whom it may concern.-

Be it known that We, EDGAR W. MIX, a citizen of the United States of America, and ELIE F. G. H. FAURE, a citizen of the Republic of France, both residents of Paris, France, have invented certain new and useful Improvements in Space-Blocks for Armature-Cores, (Case No. 1,374,) of which the following is a specification.

10 This invention relates to space-blocks or distancepieces for separating adjacent bundles of laminae or core-plates of arinatures, the object being to provide a cheap and simple construction easily applied and affording a maximum of freedom for the circulation of air.

In carrying out our invention we provide a number of punchings of sheet metal, best made of iron by reason of its cheapness,

strength, and magnetic conductivity, united to one of the c0replates at the end of a bundle of laminae by means integral with the punchings. The space-block or distancepiece is made in the form of a strip bent in an irregular or Wave shape at one end and placed radially of the core-plate extending upwardly across one of its teeth. The coreplate and the space-block are punched, so that the two may be connected to form a rigid 0 structure, with the space-block firmly supported in a plane at right angles to the plane of the core -plate. A socket may also be formed to receive the space-block by punching tongues in the core-plate and bending them up to form a steadying-socket for the space-block. At the outer end of the space block, We form a hook or other means of fastening a clip for the binding-Wire Wound upon the armature to prevent displacement of the coils under centrifugal thrust.

Our invention therefore comprises a space block of sheet metal separating adjacent bundles of core-plates provided with an irregular zigzag or undulating configuration.

5 It comprises also a space-block of sheet metal supported between adjacent bundles of core-plates by punched or struck-up lugs upon an end core-plate.

It comprisesalso a fastening device for a 0 binding-Wire of an armature anchored in the core at different circumferential positions and secured to the binding-wire at such different positions, thus permitting part of such wire to be removed or repaired.

Other features of novelty will be hereinafter more specifically described, and will be definitely indicated in the claims.

In the accompanying drawings, which illustrate our invention, Figure 1 is an elevation of part of an armature, showing the arrange- 6o ment of our space-blocks. Figs. 2 and 3 are detail views of part of a core-plate. Fig. l is a side elevation of a portion of an armature-core, showing the application of a spaceblock between adjacent bundles of laminze. Fig. 5 illustrates details showing the form of punching for the space-block and for the fastening device for the binding-wire. Figs. (5 and 7 are views on planes at right angles to one another of a modified form of fastening for the space-block, and Figs. 8 and 9 are similar views of another modified fastening.

Referring first to the organization shown in Figs. 1 to 5, 1 represents a punching of sheet metal, preferably sheet-iron, provided with a slot at 2 and an undercut recess at 3, forming a hook at the top, as clearly seen in Fig. 5. In the core-plate are punched tongues a 5, (seen in Fig. 1,) which are bent into a U shape to form a socket for receiving and steadying the edge of the space-block. An angularly-projecting tongue 6 is struck up to engage theinclined slot 2, formed in the spaceblock. Thus the tongues formed in the spaceblock and the core-plate may be interlocked by slipping the slot 2 over the tongue 6 and placing the space-block between the sides of the integral U-shaped projection 4 5. The rear end of the space'block is bent to a zigzag or wave-like form, as indicated at 7,which gives it a steady support against the coreplate and prevents twisting or buckling when the several bundles of core-plates are compressed together. 0n the outer end of the space-block is formed a hook 8, hereinbefore referred to, over Which is placed a slotted end of a metal strip 8, the part of the space-block above the hook being cut away sufficiently to permit the strip 8 to lie snugly in the spaceblockyas indicated in Fig. 4:. When the sev- 10o eral bundles of core-plates are assembled and fastened together on the supporting-spider,

these fastening-strips 8 project radially from the consecutive teeth in different transverse planes along the core, and after the coils are inserted and a binding-wire 9 wound over the core the ends of the fastening-strips may be bent around the wire and soldered fast, thus affording an advantage in permitting part of the binding-wire to be removed when necessary for repairing the armature and to be again readily replaced.

In the modification shown in Figs. 6 and 7 the core-plate is punched so as to permit two bent strips of metal integral with the plate, as indicated at 10 10, to project on one side. These lugs form a steadyingsupport for the space block, and the latter may be locked fast by pushinga pin 11 through ahole formed in the space-block after the latter has been inserted between the bent strips.

In Figs. 8 and 9 another modification is shown, in which a circular ridge arc-shaped in cross-section is pressed or spun into the core-plate, interrupted by the removal of narrow strips of metal at points opposite the center of each tooth, thus permitting the spaceblock to be supported by the walls of the ribs and locked in place by a wire or rivet inserted under the rib, as indicated at 12. Thus We provide an organization in which a mini mum amount of room is occupied by the spaceblock and perfect freedom of air circulation is afforded, and the means we employ are much cheaper to construct than the castmetal space-blocks commonly provided. At the same time a very strong construction is provided and one in which Foucault currents are not serious.

What We claim as new, and desire to secure by Letters Patent of the United States, is-

1. A space-block for an armature-core having sheet metal separating the armaturesections and held edge-on between the same.

2. A space-block for an armature, formed of sheet metal, supported radially on a coreplate and steadied against twisting or buckling by integral projections from said coreplate.

3. A space-block for an armature, comprising astrip of sheet metal secured between terminal core-plates of adjacent bundles of laminae, said strip being provided With zigzag or undulating shape to provide a steady support.

1. A space-block for an armature, comprising a thin strip supported on edge and having a bearing-surface against the core-plate, the edge being laterally extended to afford a firm seat.

5. A space-block for an armature united to a core-plate by a tongue-and-groove connection integral with the space block and coreplate respectively.

6. A space-block for an armature formed of sheet metal and having a slot cut in its edge, in combination with a core-plate having a punched tongue to engage said slot.

7. A space-block for an armature formed of sheet metal and supported between lugs struck up from a core plate.

8. A space-block for an armature, comprising a metal strip locked to a core-plate edgeon by integral locking devices and steadied by side ribs projecting from the core-plate.

9. A space-block for an armature comprising a thin metal strip locked to a core-plate edge-on, said strip having a bearing-surface against the core-plate greater than its crosssectional thickness.

10. A space-block for an armaturecore, composed wholly of sheet metal supported edge-on against the core-plates.

11. A fastening device for an armature binding-wire locked to the core and projecting therefrom to engage with the binding-wire.

12. A fastening device for a binding-wire on an armature, comprising a flexible strip anchored in the core and projecting beyond the armature to permit securing the bindingwire.

13. A fastening device for an armature binding-wire, consisting of a strip of sheet metal locked to a core-plate and projecting radially beyond the core.

14. A fastening device for an armature binding-wire, consisting of a punched strip of sheet metal engaging a hook formed in a space-block and clamped between the spaceblock and the core-plate said strip projecting radially beyond the core and bent around the binding-wire.

In witness whereof we have hereunto set our hands on this 1st day of September, 1899.

EDGAR WV. MIX. ELIE F. G. H. FAURE.

Witnesses:

A. M. TANNER, WERNER HILDEBRAND. 

